What Characteristics Does Rock Wool Have

What is rock wool? Rock wool is the company product that produces rock wool insulation materials. Also known as mineral wool, asbestos is made by spinning molten rock and minerals with steel slag to make cotton candy-like wool products.
The terms "rock wool" and "mineral fiber" are often used interchangeably, but essentially, they have the same material composition, both are natural rocks melted by rock wool spun into long fiber bundles, captured and concentrated into high-strength fibers. Density mats.
Glass wool is more versatile and cost-effective at a lighter weight, while rock wool needs to be 10% thicker to provide the same performance. Rock wool is completely waterproof, while glass wool may allow water to penetrate at a very low density.
In this study, if rock wool board is damaged, it will cause a significant increase in the thermal conductivity of the wall board of the size and thickness at the damaged place (P<0.01). The wall board is insulated with fiber fabric, glass fiber, rock wool, polystyrene foam and vermiculite. For the sound insulation effect of rock wool, rock wool itself is not a suitable sound insulation material. It is designed to absorb sound and improve acoustic treatment in the room, but in terms of sound insulation, it will only reduce sound transmission by 5dB to 8dB. And the reason for using rock wool is that this material is a widely used material in production, because it has excellent water retention and water use efficiency as well as excellent ventilation characteristics, enabling the roots to obtain sufficient oxygen to ensure the normal growth and yield of plants. Since mineral wool insulation materials are breathable, there is no need to separately open holes when installed in environments that require air gaps. And rock wool and slag wool insulation materials are composed of basically the same raw materials in different proportions, with the same production method. Manufacturers use mechanized processes to spin molten rock and slag compositions into high-temperature resistant fibers. Its raw material is made of blast furnace slag, which is a byproduct of steel production. Industry estimates that more than 90% of the slag used for insulation is purchased directly from steel manufacturers. The remaining 10% is mined from waste treatment sites and landfills. The crystalline region of slag rock wool board is wollastonite-aluminum cristobalite-dicalcium silicate. As the temperature increases, dicalcium silicate undergoes a hydration reaction with water during the production process, reducing the stability fibers of slag wool in humid environments.